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Finding the Fourth Proportional to 422,767.71, 633,750.57 and 156,347.37

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Solution

The fourth proportional to 422,767.71, 633,750.57 and 156,347.37 is: 234,372.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,767.71 : 633,750.57 = 156,347.37 : x
  2. Step 2: Convert to fraction form
    422,767.71/633,750.57 = 156,347.37/x
  3. Step 3: Cross multiply
    422,767.71x = 633,750.57 × 156,347.37
  4. Step 4: Simplify right side
    422,767.71x = 99,085,234,855.50
  5. Step 5: Solve for x
    x = 99,085,234,855.50/422,767.71
  6. Step 6: Final answer
    x = 234,372.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.